茜あかねの根ね

noun

madder root

Refers to the root of the madder plant (Rubia tinctorum or related species), used historically as a source of red dye.

• 茜あかねの根ねは古ふるくから染せん料りょうとして使つかわれてきた。

  Madder root has been used as a dye since ancient times.